States Government Manual, continually updated. U.S. Government Manual, official freely downloadable PDFs of annual printed versions, 1995–present. Edition printed November 2013 includes appendix, "History of Agency Organizational Changes" (pp. 547–608) and "Commonly Used Agency Acronyms"(pp. 539–545). CyberCemetery, online document archive of defunct U.S. Federal Agencies, maintained by the University of North Texas Libraries in partnership with the Federal Depository Library Program of the GPO Defunct agencies of the United States government Lists of defunct organizations -